{
  "family": "houndhack",
  "sample_count": 34,
  "category": "backdoor",
  "description": "HackTool:Win32/Houndhack is a heuristic classification utilized by antivirus vendors to detect tools designed to aggressively harvest, decrypt, and exfiltrate credentials stored on the local operating system, web browsers, and email clients. While these tools can theoretically be used by legitimate penetration testers, their presence on a production endpoint is almost universally an indicator of a severe breach.<br><br><b>Understanding Houndhack</b><br>To the end-user, the execution of a Houndhack tool is entirely invisible. For a security analyst, this detection indicates that a threat actor has already gained Initial Access and is now squarely in the Credential Access phase of the kill chain. The attacker is attempting to steal passwords to facilitate lateral movement across the network or to exfiltrate sensitive data.<br><br><b>Execution and Credential Dumping Strategies</b><br>Houndhack tools are typically dropped onto the endpoint *after* the attacker has established a foothold (e.g., via a backdoor or RDP compromise). Upon execution, these utilities utilize various techniques to dump credentials. They may interact with the Local Security Authority Subsystem Service (LSASS) to dump plaintext passwords or NTLM hashes from memory (`T1003.001`). They actively query the internal SQLite databases of Chrome, Firefox, and Edge to extract saved web credentials (`T1555.003`). They may also target the Windows Credential Manager or Outlook profiles.<br><br><b>Indicators of Compromise & Impact</b><br>The impact is a catastrophic loss of credential security, enabling rapid lateral movement. EDR platforms will heavily flag the execution of the Houndhack binary, particularly if it attempts to acquire a handle to `lsass.exe` using `MiniDumpWriteDump` or if it rapidly reads the `Login Data` files associated with installed web browsers. Network logs may show the sudden exfiltration of archived files containing the stolen credentials via HTTP POST or FTP.",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [],
  "enrichment_level": "expert-seo",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1046",
    "T1059.003",
    "T1555.003",
    "T1555.004",
    "T1003.001"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-06-09",
  "mitre_attack_detail": [
    {
      "id": "T1003.001",
      "name": "OS Credential Dumping: LSASS Memory",
      "tactic": "Credential Access"
    },
    {
      "id": "T1555.003",
      "name": "Credentials from Password Stores: Credentials from Web Browsers",
      "tactic": "Credential Access"
    },
    {
      "id": "T1555.004",
      "name": "Credentials from Password Stores: Windows Credential Manager",
      "tactic": "Credential Access"
    },
    {
      "id": "T1046",
      "name": "Network Service Scanning",
      "tactic": "Discovery"
    },
    {
      "id": "T1059.003",
      "name": "Command and Scripting Interpreter: Windows Command Shell",
      "tactic": "Execution"
    }
  ],
  "containment_steps": [
    "Assume all credentials stored on or entered into the compromised endpoint have been stolen; force an immediate, enterprise-wide password reset for the affected user.",
    "Isolate the endpoint from the network instantly to prevent the attacker from utilizing the stolen credentials for lateral movement.",
    "Review Active Directory logs for any anomalous authentication events (e.g., Pass-the-Hash) originating from the compromised machine.",
    "Perform a root cause analysis to determine *how* the attacker initially gained access to drop the Houndhack utility."
  ],
  "what_to_avoid": [
    "Do not assume the threat is over simply because the AV quarantined the Houndhack tool; the attacker is likely still present on the network.",
    "Avoid leaving the machine online during investigation; live credentials can be used in milliseconds to pivot to Domain Controllers."
  ],
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}